Disappeared dialogue boxes-Word 2003

Pop-up dialogue boxes such as Find&Replace and Spelling/Grammar will not open. Control H, for example, provides nothing. Misspelt words are underlined but the suggested correct spelling can only be accessed by right clicking each word. Please help as I correct English writing for a poor writer of English who is Italian. The loss of Search & Replace is causing me a lot of problems. I have thought about "Repair" but do not know my user name!
TYI Jay